Pump



Patented June 20, 1939 UNITED STATES PATENT orgies 2 Claims.

My invention relates to improvements in pumps such as used for raising water front deep wells, either by hand power or other availablev Fig. l is a top View of the pump with handv lever operating means.

Fig. 2 is a partly sectional rear elevation of` my improved pump as seen from the side opposite the water spout, and a wind-mill rod shown additionally and connected to the hand lever.

Fig. v3 is a right side elevation of Fig. 2 omitting r the hand lever, and Fig. 4 is a sectional elevation in horizontal plane as on line 4-4 in Fig. 2.

Referring to the drawing by reference numerals, similar characters designating corresponding parts in the various views; 5 represents any platform on which the base flange 6F of the main pump housing 6 is secured at 1. y

Said housing comprises a water chamber 6C at a predetermined height over the base and 8 designates a water outlet spout directed outwardly from the chamber, that part of said chamber above the outlet comprising an air chamber.

From the bottom of the said chamber 6C extends downwardly a pair of parallel pipes Slt-9L running into the ground in close parallel relation, the lower extremities of said pipes connected as at I El to a dual bore piston block II, the lower parts of the bores thereof connected with a Y-pipe I2 the single lower extremity of which comprises a water intake duct I3. The'bores of block II each have a piston I4 and a piston rod of which the right hand one is designatedl ISR and the left hand one I5L extending upwardly within pipes SR and 9L respectively, to and through the chamber 6C and above said chamber 45 the rods are connected with reciprocating means which will now be fully described.

6A is an upright column extending vertically from the top of the chamber 6C, centrally, and bifurcated upwardly, each of the two parts cornprising at its top a horizontal bar 6B forming a T-shaped head, said bars parallel and registering horizontally.

At the outer extremities of said bars 6B they are bored to retain the shaft I6 of a roller I'I. 55 Centrally of said bars 6B they are bored to ro- (Cl. 10S- 183) Y tatably retain a shaftY I8 of a vgear I9 rotatable ofcourse in a vertical plane andbetween the arms or bars 6B' and in a colnmon plane with the rollers Il.

Between each roller Il and the gear is placed 5 a vertically reciprocable toothed rack 20 the teeth of which continuously mesh with the teeth of the gear I9 and are held thus in mesh each -by its roller Il. Each rack 20 is bored longitudinally to retain the vertical shank of an L-shaped l0 member 2l the lower horizontal arm of which is bored to receive and retain the upper end part of a rod ISRf-I5L.

Gear I9 is keyed to shaft I8 and the said shaft protrudes from both sides of the bars 6B, 15 said protruding parts having suitable key means represented by a removable key 22 for retaining the fulcrum part of a pump handle 23, at either or both sides. y

It will now be readily understood that when 20 the pump handle 23 is oscillated in the usual mannen in vertical plane, and as designated by in considerable Vvolume and to a level at or over the outlet 8, that part of the chamber above the outlet automatically becomes a compression lair chamber in which the natural reaction of the compression therein over the water level tends 35 to equalize the discharge of water particularly at the instant that the strokes ofthe piston rods are changing direction.

It is understood of course that the pistons I4 and the ducts of pipe I2 are provided with neces- 40 y sary valves 25 and Z, respectively, to direct and check upward movement of the water in accordance with the piston movement. For example, in Fig. l. the left hand piston rod I5L may beassumed to be moving downward, the corresponding check valve 26 is closed and water thereabove circulates through the valves 25 yover the piston and is subsequently forced upward by the piston on its upward stroke. u

Each upward stroke of the piston draws water 5 into the chamber below it.

The toothed racks 20 as above described are of course tubular, and the bars 2l may be retained adjustably in their bores by means of set screws 2T or equivalent means. The toothed rack may of course be an integral part of bar 2l.

In Figs. 2 and 3, 28 designates the lower extremity of a reciprocating pump rod of a windmill which may be connected by means of a` link 29, at 3D to the lever 23, or any other mechanical connection of the rod may be made to cause reciprocating action of the pump rods ISR and I5L.

I am aware that a number of mechanical devices have been made for the purpose described. However my construction embodying the compactly constructed sub-surface parts as described and illustrated are highly. efcient and practical. It will be readily understood too that a housing may be made to inclose the reciprocating and other moving parts (except the handle 23) and other modications may be embodied without de parting from the scope and spirit of the invention.

I claim: Y

1. A pump of the class described comprising an upright frame with a hollow base adapted to be secured to a platform, an integraly upwardly directed Aarm from the top of said base portion and bifurcated upwardly the upper termini of said bifurcatedA arm comprising a pair of horizontally registering arms forming a T-shape with said bifurcated part, a water chamber in the upper part of the hollow base and an outlet spout directed outwardly therefrom, dual pipe conductors extending downwardly from said water chamber and parallel to each other, the lower extremities of said conductors comprising a pair of cylinders, a piston in each cylinder and a piston rod extending upwardly within each conductor and over the hollow housing, means mounted over ,said housing in said bifurcated part for simultaneously reciprocating the pistons one up and one down, alternately, a Y-pipe connected to the lower ends of the cylinders and valve means in said Y-pipe to permit upward passage of water to the cylinders alternately and to shut on downward passage of water.

2. The structure specied in claim 1, in which said piston reciprocating means comprises a gear rotatably mounted on a shaft centrally of and in the bifurcated part of the housing, a pump handle keyed 4,on said gear shaft, a pair of upright rack bars meshing with. the teethY of said gear at diametrically opposite sides thereof, each rack bar directly connected to a piston rod, means in the T-head guiding said rack bars and holding them in mesh with said gear.

GEORGE NISULA. 

